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City report · Lam Dong, Vietnam

Phan Thiết Air quality today

Air quality in Phan Thiết currently reads AQI 36 (Good): Air quality is satisfactory for everyone.

Air quality right now

AQI 36

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
5.7
tree cover
10.8%
trees in this area
26.5K
more trees needed
47.1K

Measured across a 2 km radius around Phan Thiet, Lam Dong, Vietnam (12.57 km²), from a satellite image of Sep 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Phan Thiết · AQI 36 (Good)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 18, 2026

Phan Thiết's tree count comes to 26,499 trees across 9.82 km² of land, 19 points below the 30% tree-cover level considered healthy for this area, so roughly 47,109 more trees would close the gap.

Air quality detail

Air quality in Phan Thiết today: AQI 36, Good

Main pollutant: PM2.5 · Observed Nov 11, 17:00 local time via Open-Meteo / CAMS, corrected with 7 ground-station cities within 165 km, US EPA index. Values in µg/m³.

Estimate · model corrected with 7 station cities within 165 km, e.g. Dong Nai City and Ho Chi Minh City

Health signal

Air quality is satisfactory for everyone.

PM2.5

5.7

PM10

8.6

NO₂

1.9

O₃

96.0

SO₂

0.8

CO

182.0

Outdoor exercise
A good day to be active outside
Windows
Open them to air the house
Mask
Not needed
Air purifier
Not needed

Over the last 7 days, the CAMS air-quality model put Phan Thiết's daily AQI at 43 on average, from 39 on Nov 10 to an hourly peak of 57 on Nov 6.

Last 7 daysavg 43 · peak 57
Nov 5: AQI 44 (peak 49)Nov 6: AQI 49 (peak 57)Nov 7: AQI 46 (peak 52)Nov 8: AQI 43 (peak 54)Nov 9: AQI 40 (peak 55)Nov 10: AQI 39 (peak 53)Nov 11: AQI 41 (peak 46)
Nov 5Nov 11

Where Phan Thiết stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Phan Thiết: Critically low

10.8% tree cover against a 30% healthy-neighborhood target, across 9.82 km² of land.

19 points below target

Trees in this area

26,499

Target trees

73,608

More trees needed

47,109

CO₂ if planted / yr

1,036 t

Deforestation · 2001–2025

How much forest has Phan Thiết lost?

There was very little forest around Phan Thiết in 2000, about 65 hectares, and about 31 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.

Satellite image of the area around Phan Thiết, April 2017

2017: satellite photo from April 2017 of a 5 × 5 km area in the city center.

The worst year was 2001, when about 12 hectares of forest were lost.

Forest lost each year around Phan Thiết, 2001–2025

Hectares of forest lost each year

Forest lost each year around Phan Thiết, 2001–2025. Use the left and right arrow keys to read each year.11.8

Show the figures as a table
Forest lost each year around Phan Thiết, 2001–2025
YearCleared for goodCan grow backTotal
20019 ha2 ha12 ha
20022 haunder 1 ha2 ha
2003under 1 haunder 1 haunder 1 ha
2004under 1 haunder 1 haunder 1 ha
2005under 1 haunder 1 haunder 1 ha
2006under 1 haunder 1 haunder 1 ha
2007under 1 haunder 1 haunder 1 ha
2008under 1 haunder 1 haunder 1 ha
20092 haunder 1 ha2 ha
2010under 1 haunder 1 haunder 1 ha
2011under 1 haunder 1 haunder 1 ha
2012under 1 haunder 1 haunder 1 ha
2013under 1 haunder 1 haunder 1 ha
2014under 1 haunder 1 haunder 1 ha
2015under 1 haunder 1 haunder 1 ha
2016under 1 haunder 1 haunder 1 ha
2017under 1 ha6 ha6 ha
2018under 1 haunder 1 haunder 1 ha
2019under 1 haunder 1 haunder 1 ha
20202 haunder 1 ha2 ha
20214 haunder 1 ha4 ha
2022under 1 haunder 1 haunder 1 ha
2023under 1 haunder 1 haunder 1 ha
2024under 1 haunder 1 haunder 1 ha
2025under 1 haunder 1 haunder 1 ha

What is causing deforestation around Phan Thiết?

  • Farms, pasture and plantationscleared for good50% · 16 ha
  • Loggingcan grow back19% · 6 ha
  • Towns and roadscleared for good18% · 6 ha

Also: unknown causes.

Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.

Forest gained and lost, 2000–2020

Forest in 2000
1,120 ha
Forest in 2020
1,720 ha
Overall change
+600 hamore forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Phan Thiết grew from about 1,120 hectares to 1,720 hectares, a net gain of about 600 hectares (+53%). New forest grew on about 671 hectares, while 71 hectares were lost.

These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.

These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.

Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured

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Phan Thiết air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Phan Thiết

What is the air quality (AQI) in Phan Thiết right now?

The latest reading for Phan Thiết shows an AQI of 36 (Good), observed Nov 11, 17:00 local time via Open-Meteo / CAMS, corrected with 7 ground-station cities within 165 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Phan Thiết today?

At AQI 36 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.

What has the air quality in Phan Thiết been like this week?

Over the last 7 days, the CAMS air-quality model put Phan Thiết's daily AQI at 43 on average, from 39 on Nov 10 to an hourly peak of 57 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.

How much forest has the area around Phan Thiết lost since 2001?

There was very little forest around Phan Thiết in 2000, about 65 hectares, and about 31 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here. Comparing satellite maps from 2000 and 2020, the forest around Phan Thiết grew from about 1,120 hectares to 1,720 hectares, a net gain of about 600 hectares (+53%). New forest grew on about 671 hectares, while 71 hectares were lost.

What is the tree count in Phan Thiết?

Phan Thiết has an estimated 26,499 trees across the 9.82 km² of land measured — 10.8% tree cover, 19 percentage points short of the 30% tree-cover target set for this area.

How many more trees does Phan Thiết need?

Phan Thiết needs roughly 47,109 more trees to close a 19-point shortfall against its 30% tree-cover target — about 1,036 t of extra CO₂ absorbed per year once grown.

How are Phan Thiết's air quality and tree cover measured?

Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Phan Thiet; the tree count is an estimate derived from that cover.

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